Animal Pictures for Kids with Captions to Color funny Hd To Print with Funny Captions with Quotes to: All Animal Pictures Animal Pictures for Kids with Captions to Color funny Hd To Print with Funny Captions with Quotes to Draw

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All Animal Pictures Biography

The Great Lakes are a chain of five large, freshwater lakes that are located in central North America, astride the border of Canada and the United States. The Great Lakes include Lake Erie, Lake Huron, Lake Michigan, Lake Ontario, and Lake Superior and together form the largest group of freshwater lakes on Earth.
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More About Habitats
The Biomes of the World
Aquatic Biome
Tundra
New Animal Profile - Segmented Worms
Wednesday February 26, 2014

I just added a new profile to the Animal Encyclopedia. Please extend a warm welcome to the segmented worms.

Segmented worms are a group of invertebrates that includes about 12,000 species of earthworms, ragworms and leeches. Segmented worms live in marine habitats such as the intertidal zone and near hydrothermal vents. Segmented worms also inhabit freshwater aquatic habitats as well as moist terrestrial habitats such as forest floors.

To find out more, be sure to read the segmented worms.

Photo © Nick Hobgood / Getty Images.

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Vertebrate Evolution
Wednesday February 26, 2014
Vertebrates are a well-known group of animals that includes mammals, birds, reptiles, amphibians, and fish. The defining characteristic of vertebrates is their backbone, an anatomical feature that first appeared in the fossil record about 500 million years ago, during the Ordovician period. In this article, you'll find out about the various groups of vertebrates in the order in which they evolved to create a picture of how vertebrate evolution unfolded to the present day.
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The Cambrian Period
Wednesday February 26, 2014
The Cambrian Period (543 to 505 million years ago) is the first time period of the Paleozoic Era. It is preceded by the Precambrian. The Cambrian Period opened in the aftermath of a mass extinction. During the last 100 million years of the Precambrian, a unique fauna had developed. Referred to as the Ediacaran biota, these creatures are the earliest known multi-cellular creatures to have inhabited Earth. But for reasons that remain unclear, they suddenly disappeared and their extinction marks the end of the Precambrian and the dawn of the Cambrian.
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The Basic Reptile Groups
Wednesday February 26, 2014
Reptiles are a group of cold-blooded tetrapod vertebrates that diverged from ancestral amphibians about 340 million years ago. There are two characteristics that distinguished early reptiles from amphibians and enabled them to colonize terrestrial habitats more extensively than their ancestors, scales and the ability to lay hard-shelled amniotic eggs. Scales protect reptiles from abrasion and loss of body moisture. Find out about the basic reptile groups and their key characteristics here.

I just added a new profile to the Animal Encyclopedia. Please extend a warm welcome to the segmented worms.

Segmented worms are a group of invertebrates that includes about 12,000 species of earthworms, ragworms and leeches. Segmented worms live in marine habitats such as the intertidal zone and near hydrothermal vents. Segmented worms also inhabit freshwater aquatic habitats as well as moist terrestrial habitats such as forest floors.

To find out more, be sure to read the segmented worms.

Photo © Nick Hobgood / Getty Images.

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Vertebrate Evolution
Wednesday February 26, 2014
Vertebrates are a well-known group of animals that includes mammals, birds, reptiles, amphibians, and fish. The defining characteristic of vertebrates is their backbone, an anatomical feature that first appeared in the fossil record about 500 million years ago, during the Ordovician period. In this article, you'll find out about the various groups of vertebrates in the order in which they evolved to create a picture of how vertebrate evolution unfolded to the present day.
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The Cambrian Period
Wednesday February 26, 2014
The Cambrian Period (543 to 505 million years ago) is the first time period of the Paleozoic Era. It is preceded by the Precambrian. The Cambrian Period opened in the aftermath of a mass extinction. During the last 100 million years of the Precambrian, a unique fauna had developed. Referred to as the Ediacaran biota, these creatures are the earliest known multi-cellular creatures to have inhabited Earth. But for reasons that remain unclear, they suddenly disappeared and their extinction marks the end of the Precambrian and the dawn of the Cambrian.
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The Basic Reptile Groups
Wednesday February 26, 2014
Reptiles are a group of cold-blooded tetrapod vertebrates that diverged from ancestral amphibians about 340 million years ago. There are two characteristics that distinguished early reptiles from amphibians and enabled them to colonize terrestrial habitats more extensively than their ancestors, scales and the ability to lay hard-shelled amniotic eggs. Scales protect reptiles from abrasion and loss of body moisture. Find out about the basic reptile groups and their key characteristics here.
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New Habitat Profile - Andes
Wednesday February 26, 2014

I just added a new profile to the Habitat Encyclopedia. Please visit the new Andes profile page to find out about this unique region and the wildlife that calls it home.

The Andes are a chain of mountains that extends 4,300 miles along the west coast of South America and bisects seven countries--Venezuela, Columbia, Ecuador, Peru, Bolivia, Chille, and Argentina. The Andes are the longest chain of mountains in the world and include many of the highest peaks in the Western Hemisphere. Although the Andes are a long mountain chain, they are also narrow. Along their length, the east-to-west breadth of the Andes varies between about 120 and 430 miles wide.

To find out more, be sure to read the Andes profile.

Photo © Eastcott Momatiuk / Getty Images.

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New Habitat Profile - Temperate Forests
Saturday February 22, 2014

I just added a new profile to the Habitat Encyclopedia. Please visit the new temperate forests profile page to find out about this unique region and its many animal inhabitants.

Temperate forests are forests that grow in temperate regions such as those found in eastern North America, western and central Europe, and northeastern Asia. Temperate forests occur at latitudes between about 25° and 50° in both hemispheres. They have a moderate climate and a growing season that lasts between 140 and 200 days each year. Precipitation in temperate forests is generally distributed evenly throughout the year. The canopy of a temperate forest consists mainly of broad-leaved trees. Toward polar regions, temperate forests give way to boreal forests.

To find out more, be sure to read the temperate forests profile.

Photo © Joson / Getty Images.

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New Habitat Profile - Tropical Forests
Friday February 21, 2014

I just added a new profile to the Habitat Encyclopedia. Please visit the new tropical forests profile page to find out about this unique region and its many animal inhabitants.

Tropical forests are forests that grow in tropical and subtropical regions. Tropical forests cover about six percent of the Earth's land surface. There are two basic types of tropical forests--tropical moist forests (such as those found in the Amazon Basin and the Congo Basin) and tropical dry forests (such as those found in southern Mexico, the lowlands of Bolivia, and the western regions of Madagascar). Tropical forests typically have four distinct layers that give the forest structure. These layers include a forest floor layer, an understory, an upper canopy, and an emergent layer.

To find out more, be sure to read the tropical forests profile.

Photo © Joson / Getty Images.

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New Animal Profile - Crabs, Lobsters, and Relatives
Thursday January 30, 2014

I just added a new profile to the Animal Encyclopedia. Please extend a warm welcome to the crabs, lobsters, and relatives.

Crabs, lobsters, and their relatives (Malacostraca), also known as malacostracans, are a group of crustaceans that includes crabs, lobsters, shrimp, mantis shrimp, prawns, krill, spider crabs, woodlice and many others. There are about 25,000 species of malacostracans alive today.

The body structure of malacostracans is highly diverse. In general, it consists of three tagmata (groups of segments) including a head, thorax and abdomen. The head consists of five segments, the thorax has eight segments and the abdomen has six segments.

To find out more, be sure to read the crabs, lobsters, and relatives profile.

Photo © Anup Shah / Getty Images.

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New Animal Profile - Cartilaginous Fishes
Thursday January 30, 2014

I just added a new profile to the Animal Encyclopedia. Please extend a warm welcome to the cartilaginous fishes.

Cartilaginous fishes (Chondrichthyes) are a group of vertebrates that includes sharks, rays, skates and chimaeras. Members of this group include the largest and most formidable marine predators alive today such as the great white shark and the tiger shark as well as large filter feeders such as the manta ray, whale shark and basking shark.

Cartilaginous fishes have a skeleton that consists of cartilage (in contrast to their cousins the bony fish, whose skeletons are made up of true bone). Cartilage is both tough and flexible and it provides sufficient structural support to enable cartilaginous fishes to grow to considerable size. The largest living cartilaginous fish is the whale shark (about 30 feet long and 10 tons).

To find out more, be sure to read the cartilaginous fishes profile.

Photo © Anup Shah / Getty Images.

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New Habitat Profile - Biomes of the World
Thursday January 30, 2014

I just added a new profile to the Habitat Encyclopedia. Please visit the new biomes of the world profile page to find out about this unique region and its many animal inhabitants.

Biomes are large regions of the earth that share similar characteristics such as climate, soils, precipitation, plant communities, and animal species. Biomes are sometimes referred to as ecosystems or ecoregions. Climate is perhaps the most important factor that defines the nature of any biome but it is not the only one--other factors that determine the character and distribution of biomes include topography, latitude, humidity, precipitation, and elevation.

Scientists disagree as to exactly how many biomes there are on Earth and there are many different classification schemes that have been developed to describe the world's biomes. For the purposes of this site, we distinguish five major biomes. The five major biomes include aquatic, desert, forest, grassland, and tundra biomes. Within each biome, we also define numerous different types of sub-habitats.

Learn interesting facts about animals, a group of living organisms that includes amphibians, birds, fishes, invertebrates, mammals and reptiles. There are millions of species of animals alive today. The articles listed here provide facts about animals including their characteristics, classification and evolution.

Select from the links below for facts about each animal group:

Basic Animal Facts
Amphibians
Arthropods
Birds
Cnidarians
Fishes
Mammals
Molluscs
Reptiles
Basic Animal Facts
Animals - Animalia
Let's begin with a few basic animal facts. Animals are multicellular organisms that are capable of locomotion and rely on other organisms to obtain their nourishment. There are many different groups of animals, among which the better known groups are amphibians, birds, invertebrates, fishes, mammals, and reptiles.

Animals
Chordates
Invertebrates
Vertebrates
Animal Characteristics
Facts About Animals
Basic Animal Groups
Basic Invertebrate Groups
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Amphibians
Amphibians - Amphibia
Amphibians are four-limbed vertebrates that include salamanders, newts, caecilians, frogs, and toads. Early amphibians arose during the Devonian Period, 370 million years ago, and were the first vertebrates to venture out from the water and adapt to life on land. Despite their early colonization of land, most amphibians have never fully severed their ties with aquatic habitats.

Amphibians
Facts About Amphibians
The Basic Amphibian Groups
Amphibian Pictures
The Transition from Water to Land
Why Are Amphibians in Decline
Facts About Frogs
The Life Cycle of a Frog
More About Amphibians »
Arthropods
Arthropods - Arthropoda
Arthropods are invertebrates that include insects, spiders, crustaceans, scorpions, and centipedes. Arthropods are bilaterally symmetrical and have segmented bodies. Their body is covered with an exoskeleton and many arthropods have compound eyes. Arthropods are a highly successful group of animals—they account for over three quarters of all known living and fossil organisms.

Arthropods
Facts About Arthropods
Arthropod Pictures
Insects
More About Arthropods »
Birds
Birds - Aves
Birds are four-limbed vertebrates that have wings, feathers, hollow bones, and other adaptations for an aerial lifestyle. Flight consumes a great deal of energy and consequently these warm-blooded animals have high metabolic rates. Birds evolved from reptiles during the Mesazoic Era about 150 million years ago. Today, an estimated 9000 species of birds inhabit our planet.

Albatrosses and Petrels
Birds of Prey
Buttonquail
Cassowaries and Emus
Cranes, Coots and Rails
Cuckoos and Turacos
Flamingos
Gamebirds
Grebes
Herons and Relatives
Kingfishers and Relatives
Loons
Owls
Parrots
Penguins
Perching Birds
Pigeons and Doves
Waterfowl
Woodpeckers and Relatives
More About Birds »
Cnidarians
Cnidarians - Cnidaria
Cnidarians are a group of invertebrates that includes jellyfish, hydra, sea anemones, corals, and sea pens. Cnidarians have radial or biradial symmetry. The basic body form of cnidarians is simple, consisting of a stomach sac with a single opening. The life cycle of many cnidarians includes a free-swimming medusa and a sessile polyp.

Cnidarians
Cnidarians Characteristics
Cnidarian Pictures
Facts About Jellyfish
The Life Cycle of a Jellyfish
Facts About Coral
More About Cnidarians »
Fishes
Fishes
Fishes were among the first vertebrates to evolve. The earliest known fishes were the ostracoderms, a now-extinct group of jawless fishes that appeared in the Cambrian Period. Other early fishes include the conodonts and the agnanthans. Fishes later evolved jaws and diversified into a number of lineages including cartilaginous fishes, ray-finned fishes and lobe-finned fishes.

Ray-Finned Fishes
Cartilaginous Fishes
Lobe-Finned Fishes
Sharks, Skates and Rays
Batoids
Hammerhead Sharks
More About Fishes »
Mammals
Mammals - Mammalia
Mammals are four-limbed vertebrates that have mammary glands, hair, a diaphram, a four-chambered heart, and a large cereberal cortex. Seventy million years ago when reptile diversity declined, mammals took over habitats once unavailable to them. Mammals have successfully adapted to and colonized a wide variety of habitats including land, air, and water.

Aardvark
Anteaters and Relatives
Bats
Carnivores
Cetaceans
Elephants
Hares, Rabbits, and Pikas
Even-Toed Hoofed Mammals
Odd-Toed Hoofed Mammals
Marsupials
Primates
Rodents
More About Mammals »
Molluscs
Mollusks - Mollusca
Molluscs are a highly diverse group of invertebrates that include squid, octopuses, cuttlefish, nudibranchs, snails, slugs, limpets, sea hares, mussels, clams, oysters, scallops and many other groups of organisms. There are more than 100,000 species of molluscs making them second in diversity to only the arthropods. The branch of zoology devoted to the study of molluscs is known as malacology.

Bivalves
Cephalopods
Gastropods
Pulmonates
More About Molluscs »
Reptiles
Reptiles - Reptilia
Reptiles are four-limbed, cold-blooded vertebrates that evolved from amphibians about 340 million years ago. There are two characteristics that distinguished early reptiles from amphibians and enabled them to colonize terrestrial habitats more extensively than their ancestors: scales and the ability to lay hard-shelled amniotic eggs.

Reptile Characteristics
Chameleons
Crocodilians
Geckos
Hidden-Necked Turtles
Lizards
Side-Necked Turtles
Snakes
Squamates
Tuataras
Turtles